Building bobbin for looms



Sept. 14, 1926.

, 1,599,951 L. H. BROWN ET AL BUILDING BOBBIN FOR LOOMS Filed March 201925 .8 shats-Sheet 1 Sept. 14 1926. 1,599,951

L. H. BROWN ET AL BUILDING BOBBIN FOR LOOMS I Filed March 20, 1925 8 51341 1, 2

se t. 14, 1926.

1,599,951 L. H. BROWN ET AL BUILDING BOBBIN FOR LOOMS Filed March 20,1925 Sheets-Sheet 5 Sept. 14 1926.

L. H. BROWN ET AL BUILDING BOBBIN FOR LOOMS 8 Sheets-Sheet 4 Filed March20, 1925 am new Sept. 14, 1926. 1,599,951

| H. BROWN ET AL BUILDING BCBBIN FOR LOOMS Filed March 20, 1925 a 51 143 1, 5

L9 LiD' Sept. 14, 1926.

L. H. BROWN ET A1.

BUILDING BOBBIN FOR LOOMS Filed March 20, 1925 8 sheets-#5119911 6 AWZM. W. 02 92 WW 3 M aum WE; um. Hz. 1 .1 46 M WW My. 1w @2 1 1 WV 1 NZ @Jv/w, .WN 1 3 v P 9, W 2 E M 0 mm z? 9 w; m4. 2 2 m u WWMWW flu on; IMaw. .UN #1 Q NU Sept. 14 1926.

' L. H. BROWN ET AL BUILDING BOBBIN FOR LOOMS Filed March 20, 1925 8Sheets-Sheet 7 W En- E a Mawirw 6 (0 M Patented Sept. 14, 1926.

UNITED, STATES 1,599,951 ATEVNT OF LARKIN n. BROWN AND GEORGE E. nnrass,or KNOXVILLE, mnnnnssnn, ASSIGNORS 'ro mmrnn' CORPORATION, or HOPEDALE,massecnusnr'rs, a CORPORATION or MAINE.

BUILDING BOBBIN son LOOMS.

. Application filed March 20, 1925. Serial No. 17,068. 7

ondary windings or bunches may be wound upon the filling, carriers orbobbins in separated relation with the primary windings.

The object of the invention is to produce a bobbin winding which willcomprise a .bunchiing adapted to actuating the feeler in a manner. whichwill leave on the discharged ,empty bobbin the smallest amount of wasteyarn consistent with said opera-- tion. The bunching should be so builtas that when the feeler is engaged to actuate, the length of yarnremaining on the bobbin will be sufficient for paying into the clothwhile that bobbin remains in the shuttle. If the bobbin makes one tripbetween the scotching of the feeler and the discharge ofthat bobbin, thereserve length of yarn is to be twice the width of the cloth and alittle more for safety.

This little more or excess is wastage. Under present practice, thiswastage is relatively so large as to make, in the, aggregate, a largeloss item in the operation of a mill.

In some lines of work this wastage is as much as two per cent. Thatmeans two tons of wast-age out of one hundred tons of yarn: As wastage,this material has small value. It is sold at a large loss per pound. Two

tons of yarn out of every hundred tons is an important item. Accordingto our improvement, the bunch winding consists of a plurality ofbunches,

. a primary bunch at thebase of the bobbin 40 and one or more secondarybunches located above the primary bunch in position to engage or scotchthe feeler, whereby the feeler is prevented from actuating the travel orshuttle replenishing mechanism. Thus the feeler is kept out of actionuntil the secondary bunch or bunches have been substantially eliminatedby unwinding, the primary bunch being all that is left of the bunching,and that being a reserve containing a suflithe cloth until the emptybobbin has been discharged and a filled bobbin has been put into theshuttle, with such excessive length as may be deemed necessary forsafety.

When a plurality of secondary bunches "ary bunches.

pose of properly positioning the secon ary are built on the bobbin, thatis done for the FICE. t

purpose of insuring a bunchin position to engage the feeler undervariation in relative positlon of the feeler, such variation being dueto expansion or contraction or wear of parts concerned w1th the movementof the shuttle and the feeler.

Thus our improved filled bobbin comprises I a plurality of. bunching, apart beingv for enga ing the feeler and a part being reserve yarn to bepaid outafter the feeler actuates.

In our improved apparatus for controlling the winding on the bobbin, toproduce this improved bunching, the mechanismis duplex, one" part beingfor building the bunching and the other part being for the regularwinding after-the bunching has been built. These two parts of themechanism are so inter-related that when empty bobbins have been placedinto the spinning frame and the machine i's'again started, the

part of the mechanism which puts the ring rail through movements forbuilding the bunching will operate, and when that building has beencompleted, this part of the mechanism is automatically stopped and themechanism. which controls the ring rail for regular winding isautomatically put into action and continues until the bobbins are filledand the operator stops the entire machine.

As will more fully hereinafter appear,

provision is made for varying the space between the primary bunch, whichis always at the base of the bobbin, and the first seconda-ry bunch andto make a plurality of second- This variation is for the urbunches withreference to the feeler during changes in length of travel of theshuttle through wearing of the picker by the shuttle point and throughexpansion and contraction in the shuttle and associated parts. At leastone secondary bunch is to bein the path of the feeler. I

In the accompanying drawings, H

Figs. 1, 2, 3, and d show parts of bobbins with bunches wound thereon inaccordance with the present invention; cient length of yarn to supplythe yarn to -88; bf Fig. 5, looking tbward the right;

Fig. 7 is a horizontal section on the line,

10-10, of Figs. 9 and 11;

Fig. 7 is a section on the line, -10,

of Fig. 7, looking toward the left;

Fig. 8 is an upright section on the line, 11-11, of Fig. 7, looking inthe direction of the arrow;

Fig. 9 is an upright section on the line,

1 12-12, of Fig. 7, looking toward the right;

Fig. 10 is an upright section on the line,

plan of the mechanism shown by Fig. 12;

Fig. 15 is an upright section on the line, 1818, of Figs. 7, 12 and 14,looking toward the right;

Fig. 15 (sheet 3) isan upright section on the hue, 18"--18, of Fig. 15;

Fig. 16 is an upright section on the line,

19.19, of Fig. 14, looking in the direction of the arrow;

Fig. 17 is an upright, transverse section on the line, 20-20, of Fig.16, looking toward the right;

Fig. 18 is an elevation of a part of the left hand end of the machine;

Fig. 19 is a diagrammatic elevation of one form of the bunch buildercam; V

Fig. 20 is a detail showing the bunch winding done with that cam;

Fig. 21 is a diagrammatic elevation of another form of the bunch buildercam;

Fig. 22 is a detail showing the bunch winding done by that cam.

Referring to the drawings, A designates one of the bobbins. These are ofordinary form. A is the base of one of the bobbins. A are the. usualmetal rings surrounding the base, A These rings engage clamp members, Ain the one end of the shuttle in the well-known manner. (See Figs. 2 andIn these clamps are three notches, any one of which may receive thelowest of said rings. By changing said ring from one to another of saidnotches, the position of the bobbin relative to the points or ends ofthe shuttle will be varied. Thus the distance from the base of thebobbin to either point or end of the shuttle will be varied. If thepoint or end of the shuttle wears a depression into the picker, thatincreases the endwise travel of the shuttle and changes the relation ofthe shuttleto the feeler. If the base or bobbin holding end of theshuttle travels farther, the sliding feeler will reach the bobbinfarther from the bobbin base or head. To avoid this latter, the bobbinmay be moved in the shuttle clamps, A, to bring the base of the bobbinfarther from the ad jacent shuttle point. Qn Figs. 1 and 2, A is a bunchof yarn such as is ordinarily wound on the bobbin just above the base,A. On Fig. 1, the bunch, A is present, and above this bunch, A andseparated therefrom, by a space is another bunch, A. For convenience indescription, the bunch, A will be termed the primary bunch, While thebunch, A, is called a secondary bunch. These secondary bunches are inaddition to the hunches, A heretofore used in ordinary practice. In Fig.2, the primary bunch is smaller than in Fig. 1, and the secondary bunch.A is spaced farther from the primary bunch than is the case in Fig. 1.In Fig. 3, the primary bunch, A is again present and above it are foursecondary bunches, A*. In Fig. 4, five secondary bunches, A, are placedabove the primary bunch, A In this case, the primary bunch and thesecondary bunches are smaller and of practically uniform size andspacing from each other. In the preceding figures, the primary bunch islarger than the secondary bunches. This variety in illustration is madefor. the purpose of showing that the size and shape and spacing of thesebunches may be varied as may be found best suited to obtain the de siredaction through the feeler.

In Figs. 1 and 2, the single secondary bunch, A is'to be made of suchsize as is best adapted to control the feeler; and the space between thesecondary bunch and the primary bunch is to be made suflicient to allowthe feeler to enter behind the secondary bunch and be held by saidbunch. F urthermore, as is shown in Fig. 2, the secondary bunch may befarther from the primary bunch than the width of the outer or workingend of the feeler. The secondary bunch is to be thus placed when that isdemanded by the relative positioning of the'bobbin and the feeler.

At the beginning of the winding of empty bobbins, the ring rail is inits lowest position, the position for winding at the base of thebobbins. Then, with the bobbins put into rotation for winding, the ringrail is moved up and down a distance or traverse suited to the Windingof the primary bunch,

A When that bunch has been completed, the ring rail is given a quickupward movement for a quick traverse to the place of beginning of thefirst secondary bunch, A".

. shape wellsuited to resist sliding of the feeler past the part of thebobbin on which that secondary bunch is located. If

another secondary hunch is to be added,

the ringrail is given a quick upward movement or traverse to bringtheincoming yarn,

Y, t0 the place for starting the next secondary bunch. Then that bunchis built in the B same manner as the last secondarybunch, the ring railbeing given the ,same short reciprocations. Thus any number of secondarybunches-are to be built in succession. When the last secondary bunch hasbeen completed, theringrail is lowered to again bring the in-comingyarn, Y, to the lower part of the primary. bunch, as shown in Figs. 1,2, 3 and 4, This completes the bunch winding, and the: bobbins are nowready for the r,egular or general winding whereby the entire bobbin isfilled to the ordinary external form.,At this time the bunching partofthe, ring rail control mechanism isautomaticallyqthrown out of actionand the other part of the ring rail control mechanism is automaticallythrown into action and allowed to continue until, by the regularwinding, the bobbin is entirely filled, atwhich time the machine is'stopped automatically or the operator stops it by shifting the powerbelt or clutch through which power transmitted to the.

machine. g

In each group of the ring rail control mechanism, the main factor is acam having an irregular Workingedge or face adapted to shift a memberwhich is in operative relation with the 'ring rail for moving the latterinto different elevations. Associated with each off-said cams are a wormgear wheel and a'worm for transmitting motion, 'to the correspondingcam. The shaft of each of said worm gears is constantly driven,

and one end of each shaft is adapted to be raised and lowered to put itsworm out of and into engagement with the adjacent worm Wheel. Associatedwith the secondary buneh winding group of mechanism are mechanicaldevices for automatically raising the adjacent gear worm shaft andlowering the other gear worm shaft when the bunch building camhascompleted one ro-. tation. The worm shaft lifting means of the twogroups of mechanisms are joined to a common rock shaft, F, which iscontrolled by a pedal for rocking said shaft in the direction adapted toraise the worm shaft of the regular winding mechanism and lower the wormshaft of the bunch building mechanism.

For convenience in description, the part of themachine toward theobserver in Fig. 7, will herein be treated as the front of the machine.

The frame of the, machine is of ordinary construction.

lifting stems or rods, D extendingdownvward slida-bly through theflanges, B of the adjacent spindle rail. I

On the upper flange, B are seated spindles, E, of usual form. Thesespindles are driven by. belts (not shown) appliedto pulleys, E on thespindles, which beltsare' driven from the usual longitudinal drum orsimilar driven member (not shown). On each spindle is placed a bobbin,A, to barotated by the spindle. The bobbin extends upward through thering rail, D, in the usual manner, and on the ring rail around eachbobbin is a ring, D for guiding the yarn, Y, to the bobbin. The heightof the rail determines the height of the ring, and the height of thering determines the height at which the yarn is delivered to and woundon the bobbin.

As above stated, the ring rail is positioned 95 by positioning the stemsor lifting rods, D

Said stems are supported and moved up and down through the action of thetwo groups of ring rail control elements above mentioned.

Since the regular building mechanism is the simpler mechanically, thatwill be described before a descriptionof tln bunch builder mechanism isundertaken.

Referring to Figs. 7, 8, 14 and 15, F is a horizontal, transverse rockshaft having its ends resting in bearings, F formed in the spindlerails, 13 and B F is an arm fixed on the shaft, F, adjacent therearspindle rail, B and extending'obliquely downward and rightward andhaving its free end extended under the lower flange, B

of said spindle rail to limit turning of the rock shaftcontra-clockwise. Adjacent the inner face of the front spindle rail, B,a pedal, F ,:is fixed on the shaft, F, and extended obliquely downwardand rightward and forward below the spindle rail.

Said pedal is to be pressed downward by the feet of the operatorforiturning said rock shaft clockwise.- Near the arm, F a counter weightarm, F isfixed on the shaft,

F, and extends leftward, in the direction 2 opposite the arm, F andsupports a counter Weight, F which tends to rock said shaftontra-clockwise, in opposition to the arm, 'and the pedal, F Between thecounterweight arm F, and the arm, F is a coupling arm, F, rigid on theshaft, F, and extended toward the left. On the front part of the shaft,F, next to the pedal, F isa similar coupling arm, F", also fixed on theshaft, F, and extended toward the left. At the left of and parallel tothe rock shaft, F, is the cam shaft, G, seated 1n bearings, G applied tothe lower faces of the spindle rails. Near the rear spindle rail, B aworm wheel, G surrounds and s fixed to the shaft, G. Above said wheel isa shaft, G, on which is a gear worm, G which is adapted to mesh with theworm wheel, G The shaft, G, extends leftward through a rocking bearing,G supported on a bracket, G. The rocking bearing is at an opening, C inthe end frame, C, and the shaft, G, projects through the rockingbearing, and a sprocket wheel, G surrounds and is fixed to theprojecting end of the shaft. Said sprocket wheel is constantly turnedfor. constantly turning said shaft,

as will be described further on.

At the right of the worm, G a'coupling block, G is mounted immovably onthe worm shaft, G. A pintle, G", extends through the coupling arm, F,and said coupling block, G and the counter-we ght arm, F". When the rockshaft, F, is turned to lower the coupling arm, F the coupling block, Gand that end of the worm shaft, G, are lowered to bring the worm, G intoengagement with the Worm wheel, G The worm shaft, G, being constantly inmotion, the worm will then turn the wheel,"-G and the cam shaft, G,until such time as the rock shaft, F, is turned clockwise by thedepression of. the pedal, F whereby the counter-weight arm, F, and thecoupling arm, and the coupling block, G and the adjacent end of the wormshaft are lifted, whereby the worm is lifted out of engagement with theworm wheel, G

Near the front spindle rail, the regular builder cam, G surrounds and isfixed on the shaft, G, and is constantly rotated while the worm, G is inengagement with the worm wheel, G

The cam, G is of a form heretofore in general use. Its working edge hasthree extensions adapted to raise and lower the ring rail three timesthrough equal ranges. For transmission of motion from the cam to thering rail, a bell crank structure, H, is pivoted on a horizontal shaft,H and has a horizontal arm, H extending to the lower part of the cam andsupporting an anti-friction roller, H in position to bear against theworking edge of the cam. Ro tation of the cam will successively depressand permit the rising of the arm, H whereby the bell crank structure isrocked. The other arm, H (f the bell crank extends upward. From theupper end of the arm, H*, a chain, H extends leftward and is coupled toa rod, H, which is coupled to the upper end of the upright rockinglever, H, which is coupled between its ends to an upright arm, I, fixedon one of the rock shafts, I, through which the ring rail lifting rodsare controlled.

The bell crank structure, H, is provided with mechanism for varying theheight of the attachment of the chain, H", to the upper arm, H, of saidstructure, whereby the pull of the chain, H, and rod, H, on the arm, His varied to vary the height of the traverse range of the ring railduring the regular winding, whereby that winding gradually advances fromthe base to the upper end of the bobbin.

Since this mechanism is of ordinary form and well known, a detaildescription and illustration thereof are deemed unnecessary. Therelation of the arm, H, to other members will be described further on.

Turning now to the bunch builder mechanism, K is an arm having a base, Kresting against and secured to the inner face of the frame, C, by meansof bolts, K Said arm extends horizontally toward the opposite end of themachine. Near the middle of the arm there is a hearing, K At the upperpart of the base, K two ears, K extend upward. A journal, L, is seatedin and fixed in the bearing, K A worm gear Wheel, L surrounds saidjournal and is rotatable thereon. A gear worm, L is located above andadapted to engage or mesh with said wheel. Said worm is fixed on ahorizontal worm shaft, L The left hand end of said shaft extends througha rocking bearing, L, which is pivoted between the ears, K, and extendsinto the'opening, C in the frame. On the outer end of said shaft isfixed the sprocket wheel, L which is'constantly driven, whereby the wormshaft and the worm are constantly driven, and whereby the worm Wheel, Lis constantly driven during such times as the worm is in engagement withthat wheel. On the-end of the worm shaft, L is a coupling block, L,which extends into a fork, L, which is a part ofthe horizontal rockinglever, L, which is pivoted to the right hand end of the arm, K, by meansof a pintle, L When the right hand end of the rocking lever, L", ismoved upward, the fork, L goes downward and allows that end of the wormshaft to descend until the worm, L makes engagement with the worm wheel,L When the right handend of the rocking lever, L is pressed downwardthefork, L rises and lifts that end of the worm shaft, whereby the worm islifted out of engagement with the worm wheel.

The rocking lever, L is controlled by the arm, F which has already beendescribed as being fixed on the forward end of the rock shaft, F. Thearm, F, has an off-set, F

which extends across the right hand end of the rocking lever, L". Acontractingspring, L serves to couple the right hand end of the lever, Lto the offset part, F, of the arm, F, the upper part of said spring ishooked over the off-set part, F, of the arm, F, and the lower part ofsaid spring is hooked into a notch, L formed on the lower edge of thearm, L When the rock shaft F, is turned clockwise, the right hand end ofthe lever, L will move upward and the oppositeendof said lever will movedownward, whereby the worm, L will be lowered into engagement with theworm wheel, L. If the rock shaft, F, is turned in the oppositedirection, the arm, F will be depressed, and that will cause thedepressing of the right hand end of the lever, L", the

left hand end of said lever rising and lifting that end of the rockshaft, whereby the worm, L is lifted out of engagement with the wormwheel, L

As already described, the rock shaft, F, may be turned clockwise bydepressing the pedal, F, the counter-weight, F tending at all times toturn the rock shaft in the opposite direction-contra-clockwise. From theprevious. description, it will appear that the arm, F, and the arm, F",are at the same side of the rock shaft, F, and consequently both saidarms move upward in unison when said shaft is turned clockwise; and,asal-.

ready described in connection with the regularv building mechanism, thelifting of the arm, F", will cause the lifting of the worm, G out ofengagement with the worm gear wheel, G whereby that wheel and its shaft,G, and the cam, G are brought to rest.

By interposing the rocking lever, L be tween the arm, and the couplingblock, L", the action on the worm shaft, L, relative to the action onthe worm shaft, G, is reversed, so that when the shaft, G, is raised,the shaft, L, is lowered, Thus when one of the worm wheels is in motion,the other is at rest. To the free end of the arm, F, is hinged the upperend of a pawl, M, by means of a horizontal, transverse pintle, M whichpawl has on its left hand edge and near its low-- er end adownward-directed shoulder, M

which is adapted to rest on a lug or shoulder, M, on thearm, K, when thearm, F, is in position to tilt the rocking lever, L to put the worm, L",into engagement with the worm wheel, L When the pawl is in thisposition, it resists downward pressure by the arm, F, caused by downwardpressure of the counter-weight,F, already described.

The pawl is to be coupled tothe arm, F,

in such position relative to the lug or shoulder, M as to cause the pawlto tend to swing leftward. for engagement with the shoulder, M, when thepawl is raised by the raising of the arm, F. This engagementby the pawlis to continue as long as the worm not yet described, and that cam is tomake only one rotation during bunch building on one set ofbobbins; hencethe pawl engagement is to be in effect only during one rotation of theworm wheel. Accordingly provislon is made in connection with said wheelfor at the end of each rotation automatically pushing the lower end ofthe pawl to free the shoulder, M from the lug, M For thus disengagingthe pawl, M, alug, M, loosely surrounds the hub of the worm wheel, L, onthe outer or front face of said wheel and reaches outward like a hand ona clock face. A'slotted plate, M bearing at its forward end a stop, M,is laid flatwise against the outer face of the wheel, L and is,adjustably secured thereto by means of a compels forward movement of thestop, M, whereby the stop is forced forward against the lower end of thepawl, M. The time when the engagement is made between the lug, M and thepawl may belvaried by changing the position of the lug, M". That can bedone by loosening the nut, M and then shift ng the plate, M", endwise tothe desired position and then again tightening said nut.

When. the lug, M, thus engages the lower end of the pawl, M, and pushessaid end far enough to release the shoulder, M", from the lug, M saidpawl is free to descend in response to the downward pressure of the arm,F, which pressure is, as above described, constantly exerted through theaction of the counter-weight, F, on the arm, F which is right on therock shaft, F. Such downward movement of the arm, F, causes the tiltingof the rocking lever, L whereby the adjawhereby the worm, L is liftedout of engagement with the worm wheel, L This same partial turning ofthe rock shaft causes the downward movement of the arm, F", whereby theadjacent end of the worm shaft,

LG, is lowered, whereby the worm, G, is

lowered into engagement with the worm wheel, G. Thus the bunch buildingmechanism is put out of action and thel'ugnlar building mechanism is putinto action The bunchbuilder cam, N, is applied to I the rear face ofthe worm ear wheel, L

Said cam has a hub, N 'whic surrounds the journal, L, and is of nearlythe same diameter as the worm wheel and rests against and is bolted tothat wheel. Thus the cam is made to rotate in unison with the wormwheel, the body of the cam being disc-form and spaced a short distanceaway from the To the rear face of the arm, K, is coupled the upper endof an upright oscillatory link, N. The lower part of said link has alongitudinal slot, N. On the right hand edge of said link is a lateralextension, N, on which is mounted an anti-friction roller, N", which ispositioned to bear against the working edge of the cam, N. A crankwrist, N, has

a stem, N of'smaller diameter extending through the slot, N. (Fig. 12).On its rear end said stem is surrounded by a nut, N", by means of whichsaid wrist may be set in any elevation in said slot. On the front orouter end of the wrist is a head, N. The left hand end of a connectingrod, N bears a slotted head, N, which receives the wrist,N". The extremeleft hand part of the slot in said head is smaller than the head, N. Theright hand part of said slot is large enough for the head, N, to passthrough. Thus, when the rod is connected to the wrist, the rod may bemoved leftward or the link, N moved rightward until the head, N, is inposition to be passed through the larger part of the slot in the head,N. The head, N", is threaded on the rod, N and by turning said head whenit is disconnected from the wrist, the head may be moved toward theright or toward the left on said rod, according to the direction inwhich said head is turned. After loosening the nut, N the wrist, N maybe moved up or down to change the distance between said wrist and theupper pivot of said link, whereby the endwise throw of said rod by theoscillation of the link is varied.

The right hand end of the connecting rod, N is coupled to the lower endof the rocking lever, H", which, as. above described, is coupled betweenits ends to the upright arm, I fixed on the usual rod lifting rockshaft, I, resting in brackets, I extended downward from the spindlerails, B and B. (Fig. 16). It has already been described that the rod,H", which is actuated by the regular builder cam, is coupled to theupper end of the rocking lever, H. The rods, H and N ull in the samedirectiontoward the left. ut, since one of said rods is controlled bythe regular builder cam and the other of said rods'is controlled by thebunch builder cam, and those cams work in alternation, it follows thatthose rods work in alternation, so that when one rod is ulled the otheris at rest and its right han end forms a fulcrum on which the rockinglever, H rocks. Every such movement of thelever, H, causes the rockingof the arm P, to the upper end of which the middle of the lever, H iscoupled. Thus every leftward movement of either the rod, H, or the rod,N will cause a leftward tilting of the upright arm, I whereby theadjacent rock shaft, I, is partially turned. e

Other rock shafts, I are similarly supported in bther brackets, I,extending downward from the spindle rails. On these shafts are uprightarms, I", the upper ends of which are joined by connecting rods, 1, inthe usual manner. By this means, all the rock shafts, I, are made torock in unison, the shaft, 1, to which the rocking lever, H, is appliedacting as the master shaft. 7

On each end of each shaft, I, is a horizon tal rod lifting arm, Idirected toward the right and extending beneath the lower end of one ofthe lifting rods, D which have already been described as being slidablein the spindle rails and as supporting the ring rails. When either therod, H or N is pulled leftward to turn the arm, I leftward. all thearms, I", are lifted, and thereby all the lifting rods, D are pushedupward, whereby the ring rails, D, are lifted in the usual manner forapplying yarn tot-he bobbins according to the height of the rings, Das-is already well known in this art.

The action of the bunch builder cam will now be described.

Reference is first made to Fig. 19, which is a diagrammatic frontelevation of the form of said cam suited to build a primary bunch andone secondary bunch. The roller, N", which has already been described asbeing mounted on the oscillating link, N is shown resting in thedepression at O, which is on the short radius, and when the roller is inthat position, the ring rail is in its lowest position, and the windingof yarn is at the base of'the bobbin. (See lower line, Fig. 20.)

The cam turns clockwise, as indicated by the arrow. This brings theextension, 0 into engagement with the roller, whereby the roller ispushed outward on a radius which is long enough to cause the lifting ofthe ring rail to the height of what is to be the upper edge of theprimary bunch, A l/Vhile the cam moves from, O, to 0 the winding of theI first layer in the primary bunch proceeds. Next the roller movesinward into the depression, 0 the radius being the same as at 0. Duringthe movement between 0 and O the ring rail descends whereby a layer ofyarn is wound downward to the lower edge of the primary bunch. Thesemovements are repeated until the roller engages atO which is again onthe short radius and brings. the ring rail into its lowest position.Then from O to 0 there is a rapid outward movement which constitutes thetraverse between the primary bunch and the secondary bunch, A, the rapidmovement causing a sparse winding on the traverse area. Between 0 and 0the radii diminishuntil the difference between the middle radiusand theouter radii equals the width desired for the first layer of thesecondary bunch. Between 0 and 0, there are similar faces; but thedifference in radii is progressively increased, in order that the rangeof rail movement may be progressitely slightly increased to increase therange of the winding until the secondary bunch reaches its full width.On

' downward through such downward traverse as indicated by the line andarrows, on Fig. 20. v

The pivoted lug, M, on the worm wheel, L ,*is so controlled as to pushthe pawl, M, out of engagement with the lug, M when the above describedcycle has been completed by the arrival of the depression, Q, on theroller, N. -As already described, such disengagement of the pawl, M,permits the rocking of the rock shaft, F, by the action of thecounter-weight, F whereby the worm, L is lifted and the worm, G islowered, whereby operation is shifted from the bunch building mechanismto the regular building mechanisnnand the winding on the bobbin thenproceeds in the well-known manner from the base of the bobbin to itsupper end,

the regular builder cam, G causing a winding through a chosen rangewhich is progressively raised.

' At the completion of the regular winding, the entire machine isstopped by automatic means heretofore in use or through the shifting bythe operator of the power belt or clutch by means of which power isdelivered.

to the machine.

When the filled bobbins have been 'removed and empty bobbins have beenput into position, power is again applied to the machine and the bunchbuilder mechanisrh set into action by the operator depressing the pedal,F that mechanism being so held by the pawl, M. Then the bunch build-ercam, N, again makes one complete rotation, whereby the bunch building iscarried through the cycle already described, after which the winding isautomatically shifted to the regular building mechanism.

The action of the cam, N, of Fig. 20, may be varied as will now bedescribed.

On the lower part of the cam, the roller, N, is shown dotted at O 0, O,O and having already passed the roller when the bunch building mechanismis put into. action. Then only the part of the cam between 0 and 0 willwind for forming the primary buncln Then the secondary bunch windingproceeds as far as O,'after which follows the traverse to O, and windingon the primary bunch is resumed and continues from O, to O, the cyclebeing thus completed with a second winding on the primary bunch. Thus alarge primary bunch as shownin Fig; 1, may be formed. During unwindingin the loom, the second winding thus added to the primary bunch isunwound before the secondary bunch is unwound, the part prevlously woundin the primary bunch remaining as reserve after the action'of thefeeler. The length of yarn in .this reserve may be varied by changingthe starting point on'the rim or working face of the cam. If, forexample, the reserve yarn with the roller,

N, at O, is to. be increased, the parts of v i the mechanism may be soadjusted as to place the roller at 0 when the cycle begins; and ifreserve formed by starting at O? is to be diminished, the cycle may bemade to begin with the roller onO. i

In Fig. 21, the cam is formed to "build the primary bunch and foursecondary bunches, as illustrated by Fig. 22. For building the primarybunch, the working rim of the cam, is of the same form as in Fig. 22,excepting that this part of the rim has five instead of four extensions,the depressions, 0 and 0 being added to provide '0 is on a still longerradius. From that face there is a rapid inward traverse, 0 to O, thebeginning of the cycle.

When the .roller movement has completed Next there is a the winding ofthe primary bunch and is on 0 there is atraverse which by sparse windingbrings the yarn to the position for the first or'lowest secondary bunch.That bunch is wound while the roller is on the concentric face, .0 thentraversing and bunch winding alternate while the roller passes from O,to 0, whereby the four bunches, Q of Fig. 22 are formed. Then on 0 thereis. a quick traversewhich carries the am, from the upper bunch to thebase of t e primary bunch. VVhen the yarn ar-. rives at that point, thebunch building mechanism goes out of action and the regular buildingmechanism goes into action, and

regular building begins at the base of the bobbin and proceeds upwardintheusual manner. H

We claim as our invention, 1. In a machine of the kind'described, aplurality 'of ring rail actuating mechanisms arranged to actalternately, one of said mechanisms being forthe building of a pluralityof bunches, substantially as described.

2. In a machine of the kind described, 3

the combination with a ring rail lifting mechanism, of a plurality ofmechanisms acting in alternation to actuate the rmg rail liftingmechanism, 'one of said mechanisms being for the building ofa pluralityof bunches, substantially as'described.

3. In a machine of the kind described, the

combination with a ring rail and lifting mechanisms being for thebuilding of a plu--.

rality of bunches, driving'meansfor one of iid mechanisms, and anotherdriving means for another of said mechanisms, substantially asdescribed;- 1

In a machine of the kind described. the

. combination with a ring rail and ring'rail lifting mechanism, of aplurality of mecha- .nisms acting in alternation to actuate the ringrail lifting mechanism. one of-sa'id mechanisms being for the buildingof a plurality of bunches, driving means for one of said mechanisms, andanother driving means for another of said mechanisms, substantially asdescribed.

.6. In a machine of the kind described, the combination with a ring railand lifting rods and rock shafts controlling the lifting rods, of apluralityof mechanisms for in alternation actuating s'aid rock shafts,one of said mechanisms, being for the. building of a plurality ofbunches, driving means for one of said mechanisms-,and another driv-'.

ing means for another of said mechanisms, substantially as described.

7. In a machine 'ofjthe kind described, a plurality ofring railactuating mechanisms arranged to act alternately, driving meansfor oneof said mechanisms, and another driving means for another ofv saidmechanisms, substantially as described.

8.111 a machine of the kind described, the combination of a ring-rail,two constantly rotating drive shafts, a ring rail actuating mechanism inoperativefrelation with one of said shafts, a ring railactuating-mecha-- nism in operativerelation' with the other of saidshafts, and means for alternately connecting said mechanisms With theirshafts to receive motion from said shafts, substantially as described.

9. In a machine of' the kind described,

means for moving the ring rail for plural 'bunch build ng on the bobbms,and other means for moving the ring rail for regular building on thebobbins, substantially as described.

10. In a machine of the kind described,

means for moving the ring rail for plural bunch building on the bobbins,other means for moving the ring rail for regular building on thebobbins, driving mechanism for said first means, and driving mechanismfor said other means, substantially as described.

11. In a machine of the kind described, the combination of means formoving the ring rail for plural bunch building on the bobbins, and othermeans for re ular building on the bobbins, the bunci building meansbeing put into motion and continuing through a predetermined movementand automatically going out of action and the regular building meansgoing automatically into action, substantially as described.

12. In a machine of the kind described, the combination of means formoving the ring rail for plural bunch building on the bobbins, othermeans for regular building on the bobbins, the bunch building means'being "put into motion and continuing through a predetermined movementand automatically going out of action and the regular building meansgoing automatically into action, driving mechanism for sa1d first means,and driving mechanism for said othermeans, substantially as described.

13. In a machine of the kind described,the combination of means forregular building on the bobbins, and means for building bunches on thebobbins, said bunch building means including a cam which has diverseWorking faces for building bunches at different elevations on thebobbins, substantially as described.

14. In a machine of the kind described, the combination of means formoving the ring rail for building a plurality of bunches on the bobbins,means for regular building onthe bobbins, controlling mechanismintervening said two building means and adapted to first put the bunchbuilding means into motion during a predetermined period and thenstopping that motion and automatically putting the regular buildingmeans into, motion, substantially as described.

' 15. In a machine of the kind described, the combination of meansincluding a cam for moving the ring rail for building a pluralityifbunches on the bobbins, means including a can for regular building onthe bobbins, controlling mechanism intervening said two building meansand adapted to first put the bunch building means into motion during apredetermined period and then .the combination of means including a camfor moving the ring-rail for plural bunchbuilding on the bobbins, andother means including a cam for regular building on the bobbins, thebunch building means being put into motion and continuing through apredetermined movement and automatically going out of action and theregular building means going automatically into action, substantially asdescribed. I

18. In a machine of the kind described, means for moving the ring railfor building a plurality of bunches, said means including a cam ,havingprovision for quick traverse between positions for bunches,substantially as described.

19. In a machine of the kind described, means for moving a ring rail forbuilding bunches on bobbins, the building beginning at the base .of thebobbins and forming a bunch and then making a quick upward.

traverse to a position for a second bunch and there building a secondbunch, substantially as-described.

20. In a machine ofithe kind described, means for moving a ring rail forbuilding bunches on bobbins, the building beginning at the base: of thebobbins and forming a bunch and then making a quick upward bobbins, andother means for then moving the ring rail for regular building on thebobbins beginning at the base of the bobbins, substantially asdescribed.

22. In a machine of the kind described, the combination of means formovin a ring rail. for building bunches on the bobbins, means forregulaigbuilding on the bobbins, worm gearing for imparting motion toone of said means, other worm gearin for imparting motion to the otherof sai building means, and means for putting the first worm gearing intoengagement and keeping it in ing said rock-shaft in position for keepingone of said driving mechanisms 1n action,

engagement during a predetermined movement of the bunch building meansand then v automatically putting that worm gearing out of engagement andputting the second worm gearing into engagement, substantially as movinga ring rail 'for building bunches on the bobbins, means including a camfor-regular building on the bobbins, worm gearing for imparting motionto one of said means,"

means intervening the ring rail and the cams for alternatelytransmitting motion from the cams to the ring rail, driving mechanismsfor alternately driving said cams, and a rock-shaft in operativerelation with said,

driving mechanisms for alternately putting them into and out of action,substantially as described.

25. In a machine of the kind described,

the combination of a ring rail, two cams,

means intervening the ring railand the cams for alternately transmittingmotion from the cams to the ring rail, driving mechanisms foralternately driving said cams, a rock-shaft in operative relation withsaid driving mechanisms for alternately putting them into and out ofaction, and a counterweightand a pedal applied to opposite sides of saidrock-shaft, substantially as described.

26. In; a machine of the kind'described, the combination of a ring rail,two cams, means intervening the ring rail and the cams for alternatelytransmitting motion from the cams to the ring 'rail, drivin mechanismsfor; alternately driving sai cams, a rock-shaft in operative relationwith said driving mechanisms for alternately putting them into and outof action, a counter-weight on the rock-shaft, and an armon therockshaft for limiting the turning of the rockshaft by thecounter-weight, substantially as.

described. y

27. In a machine of the kind described, the combination of a ringrail,two cams, means intervening the ring rail and the cams for alternatelytransmittin motion from. the cams-to the rin rail, driving mechanismsfor alternately riving said cams, a rock-shaft in operative relationwith said driving mechanisms for alternately putting them into andout-of action, a pawl for holdand means associated with the adjacent camfor automatically releasing the pawl, substantially as described.

means intervening the ring rail and the cams for lternately transmittingmotion from the c ms to the ring rail, cam driving mechanism comprisinga gear wheel, means including a pawl for holding one of said cam 28. Ina machine of the kind described, the combination of a ring rail, twocams,

' with one of said cams and said arm of the driving mechanism in action,and means controlled by said gear wheel for disengaging said pawl,substantially as described.

29. In a machine of the kind described, the combination of a ring rail,a bunch building mechanism, driving means for said mechanism, regularbuilding mechanlsm, driving means for said mechanism, means including apawl for holding the bunch building mechanism driving means in action,and automatic means for releasing said pawl, substantially as described.

30. In a machine of the kind described, the combination of a master rockshaft, an arm rigid on saidrock shaft, two building mechanisms, pullingmeans in operative relation with one of said building mechanisms andsaid arm of the master rock shaft, and pulling means in operativerelation with the other building mechanism and said arm, substantiallyas described.

31. In a machine of the kind described, the combination of a master rockshaft, an arm rigid on said rock shaft, a rocking lever coupled betweenits endsto said arm, two building mechanisms, pulling means in operativerelation with one of said building mechanisms and'one end of saidrocking lever, and pulling means in operative relation with the otherbuilding mechanism and the other end of said rocking lever,substantially as described.

32. In a machine of the kind described, the combination of a master rockshaft, an arm rigid on said rock shaft, two building cams, pulling meansin operative relation master rock shaft, and pulling means in operativerelation with the other of said cams and said arm, substantially asdescribed.

33. In a machine of the kind described, the combination of a master rockshaft, an arm rigid on said rock shaft, a rocking lever coupled betweenits ends to said arm, two building cams, pulling means in operativerelation with one of said cams and one end of said. rocking lever, andpullingmeans in operative relation with the other cam and the other endof said rocking lever, substantially as described.

34. The herein-described method of wind ing yarn on a bobbin, whichmethod consists in winding on the bobbin a plurality of separatedbunches and then returning the yarn to the base of the bobbin andconducting regular winding from the base upward until the regularwinding has been completed, substantially as described.

35. The herein-described method of winding yarn on a bobbin, whichmethod consists in winding on the bobbin a plurality of separatedbunches beginning at the base and then returning the yar to the base ofthe bobbin and conducti g regular winding from the base upward until theregular winding has been completed, substantially as described.

36. The herein-described method of operating a machine comprising aspindle rail,- spindles bearing bobbins, and a movable ring rail, whichmethod consists in applying yarn to the bobbins through the ring railand rotating the spindles for the rotation of the bobbins andpositioning the ring rail for winding a primary bunch at the base of thebobbins, then elevating the ring rail for winding a secondary bunch onthe bobbins above and separated from the primary bunch, and then movingthe ring rail for regular winding until the filling of the bobbins hasbeen completed, substantially as described. I

37. The herein-described method of operating a machine comprising aspindle rail, spindles bearing bobbins, and a movable ring rail, whichmethod consists in applying yarn to the bobbins through the ring railand rotating the spindles for the rotation of the bobbins andpositioning the ring rail for winding a primary bunch at the base of thebobbins, then elevating the ring .rail for winding a secondary bunch onthe bobbins above and separated, from the primary bunch, and'thenmovingthe ring rail for regular winding, beginning at the base of the bobbins,until the filling of the bobbins has been completed, substantially asdescribed.

In testimony whereof we have signed our" names, this sixteenth dayofMarch, in the year one thousand nine hundred and twenty- 109 LARKIN H.BROWN. GEORGE E. REPASS.

sAAmu

